Men's Running Briefs | Runderwear™ – Runderwear.com

Men's Running Briefs

$20.00$25.00

Runderwear™ Men's Running Briefs are the classic fitting favourite of many runners and are perfect under shorts with inner lining that causes chafing.

  • Chafe-free running, guaranteed
  • 360° seamless technology design
  • Breathable, moisture-wicking construction
  • Lightweight and durable technical fabric
  • 92% polyamide, 8% elastane - machine washable at 40°

Colour: Black

  • Black
  • Blue

Size

  • Select Size
  • S
  • M
  • L
  • XL
  • XXL
Men's Seamless Running Briefs

FEATURED CUSTOMER REVIEW

Chafe-free comfort

"Fantastic product and the most comfortable running underwear I’ve ever worn!! The guys at Runderwear have got it spot on and it’s great to know that I can run for mile after mile in total comfort. Great service and super-fast delivery!" - Adam S

Seamless Design

The underwear is created on a 360° seamless machine from a single piece of fabric, which means no side seams or labels. This significantly reduces the risk of skin irritation and minimises wastage during the production process versus the traditional cut and sew method

Seamless Design

Moisture-Wicking

The technical fabric has excellent moisture-wicking properties to remove sweat from your skin quickly. It has been extensively researched and tested to maximise performance, helping you stay dry and comfortable - even during the most intense exercise

Moisture-Wicking

Breathable Fabric

The performance fabric is lightweight and breathable, with carefully positioned micro-perforations incorporated into the design of each underwear style. These maximise airflow and optimise core temperature control, helping you to stay cool in any conditions

Breathable Fabric

Ergonomic Fit

Specifically engineered for runners, by runners to deliver the ultimate experience in comfort. Durable fabric with 4-way stretch movement allows you to run freely and provides support to your body, making it the perfect first layer against your skin

Ergonomic Fit
 

The Runderwear™ Men's Running Briefs are designed to provide exceptional fit, feel and support during your run. Our award-winning underwear will keep you chafe-free - guaranteed. Constructed using 360° seamless technology, which means there are no side seams or tags, resulting in less irritation against your skin. Carefully positioned micro-perforations make the fabric breathable, optimising airflow and core temperature control. Lightweight, technical fabric is moisture-wicking and removes sweat quickly from your skin to keep you dry.

Fabric Composition:

92% Polyamide
8% Elastane 

Product Care:

  • Warm machine wash up to 105°F
  • Wash with similar colours
  • Do not tumble dry
  • Do not soak, bleach or dry clean
Size Guide
MEN’S SIZES - WAIST
SIZE S M L XL XXL

         
cm 76-81 81-86 86-91 81-96 96-101
inches 30-32 32-34 34-36 36-38 38-40

Customer Reviews

Based on 1089 reviews
96%
(1042)
3%
(36)
1%
(9)
0%
(0)
0%
(2)
G
Gary
Awesome, supremely comfortable!

Only done 1 run (6km) and one hike (Pen Y Fan, 12km) wearing these, but my god, they're supremely comfortable! The lack of seams means nothing chafes or iritates, and the 'relaxed' area at the front to accommodate the family jewels ensures there's no restrictions where you don't want them.
Just amazing!

Great to hear that you are loving your Runderwear Briefs and love how comfortable that they have been. We are so pleased to hear that you are chafe free and no longer feel restricted!

Thank you for your purchase with Runderwear!

A
Aaron Hohenbrink
Doesn't fit because of narrow cut

I feel like I wasted my money as I didn't realize that this underwear can't be returned even if you just try it only briefly after taking a shower. I'm not sure how someone is expected to know how the underwear fits if you don't briefly try it on. I would not have expected the cut to be so different from my normal briefs that I wear. Maybe they are expecting tall guys (6' 4") to need a bigger size or something but these don't fit well except for around the waist (so I know I got the correct size per the sizing chart). The front part is so narrow that my junk doesn't fit completely and the back part is narrow enough that it would just bunch up in back when moving in them. I have never had these problems before across several brands of briefs. The material feels nice but that's about the only positive thing I can say about them. Maybe these briefs work for smaller guys but they are definitely not cut right for a tall, slender guy like myself.

Thank you for your feedback, I am sorry to hear that you did not get along with the Runderwear Briefs. Unfortunately we use the same policy as most shops do when it comes to underwear making this non returnable once tried. We have the size guides on the website to follow which ensure you purchase the right size and we are an email away if you need any help with sizing. I will be sure to pass your feedback onto the team as all feedback is appreciated!

C
Chris McClane
Go-to running undies

The best running/exercise underwear available! I’ve worn both the boxers and the briefs. Both are amazing, but the briefs especially during warm summer months of training and racing.

R
Richie Wade
Believe the hype

I'm a seasoned runner who hadn't sampled the benefits of support. I was in pain after an operation and after struggling for 2 weeks, I ordered some running briefs which gave me instant relief. I will be using these for recovery and eventually running again. Thankyou.

N
Neil Hibbert
Good Purchase

Very happy with my purchase, very comfortable. Just wish they were not MADE IN CHINA

Rundercare Help and Advice:

If you need any help or advice, you can contact our Rundercare team, they would love to hear from you!

Email: hello@runderwear.com

Runderwear Delivery:

USA

  • Runderwear offers free US delivery on all orders over $50. Orders are temporarily being shipped from the UK using a tracked service, delivery should be within 3-5 days.

Runderwear Returns:

You can return any Runderwear socks, crop tops, support bras, base layers or headwear to us within 30 days of purchase and can request a full refund or a product exchange.

Due to hygiene reasons we can not accept returns on underwear including briefs, hipsters, g-strings, hot pants, boxer shorts and triathlon suits, if they have been worn.

In the unlikely event that your product becomes faulty, you may return your purchase for a full refund or exchange.

Please package your return appropriately and add in a note to let us know whether you require a refund or product exchange. Please pay the postage in full and send to our Rundercare team at the following address:

Runderwear Returns
i-Fulfilment | RUNDERWEAR, Virginia Warehouse, 223 Millboro Industrial Pk Rd, Millboro, VA 24460, USA

Please email our Rundercare team at hello@runderwear.com if you require any further help.

Customer Reviews

Based on 1089 reviews
96%
(1042)
3%
(36)
1%
(9)
0%
(0)
0%
(2)
G
Gary
Awesome, supremely comfortable!

Only done 1 run (6km) and one hike (Pen Y Fan, 12km) wearing these, but my god, they're supremely comfortable! The lack of seams means nothing chafes or iritates, and the 'relaxed' area at the front to accommodate the family jewels ensures there's no restrictions where you don't want them.
Just amazing!

Great to hear that you are loving your Runderwear Briefs and love how comfortable that they have been. We are so pleased to hear that you are chafe free and no longer feel restricted!

Thank you for your purchase with Runderwear!

A
Aaron Hohenbrink
Doesn't fit because of narrow cut

I feel like I wasted my money as I didn't realize that this underwear can't be returned even if you just try it only briefly after taking a shower. I'm not sure how someone is expected to know how the underwear fits if you don't briefly try it on. I would not have expected the cut to be so different from my normal briefs that I wear. Maybe they are expecting tall guys (6' 4") to need a bigger size or something but these don't fit well except for around the waist (so I know I got the correct size per the sizing chart). The front part is so narrow that my junk doesn't fit completely and the back part is narrow enough that it would just bunch up in back when moving in them. I have never had these problems before across several brands of briefs. The material feels nice but that's about the only positive thing I can say about them. Maybe these briefs work for smaller guys but they are definitely not cut right for a tall, slender guy like myself.

Thank you for your feedback, I am sorry to hear that you did not get along with the Runderwear Briefs. Unfortunately we use the same policy as most shops do when it comes to underwear making this non returnable once tried. We have the size guides on the website to follow which ensure you purchase the right size and we are an email away if you need any help with sizing. I will be sure to pass your feedback onto the team as all feedback is appreciated!

C
Chris McClane
Go-to running undies

The best running/exercise underwear available! I’ve worn both the boxers and the briefs. Both are amazing, but the briefs especially during warm summer months of training and racing.

R
Richie Wade
Believe the hype

I'm a seasoned runner who hadn't sampled the benefits of support. I was in pain after an operation and after struggling for 2 weeks, I ordered some running briefs which gave me instant relief. I will be using these for recovery and eventually running again. Thankyou.

N
Neil Hibbert
Good Purchase

Very happy with my purchase, very comfortable. Just wish they were not MADE IN CHINA

The best Christmas Gift for runners - Runners World
“The best Christmas gift for runners"
You will feel a million pounds - Womens Running
“You’ll feel a million pounds”
Maximum comfort whilst you run - Personal Trainer Magazine
“Maximum comfort whilst you run”
Super comfy and sweat wicking - the guardian
“Super comfy and sweat wicking”
Breathable, Wickable and Chafe-Free - Trail Running Magazine
“Breathable, Wickable and Chafe-Free”